AiM MyChron Speed Sensor Magnet, with threaded end. Use this to thread onto a wheel or into a speed collar to help determine wheel speed of the front or rear of kart.
Overview
MyChron's speed sensor Magnet is M4 in size, and designed to thread onto a speed sensor or pre-threaded body glued to a wheel to aid in sensing the wheel speed of a car. Each magnet is equipped as shown.